Dissociating expectancy of shock and changes in skin conductance: an investigation of the Perruchet effect using an electrodermal paradigm

Is human Pavlovian conditioning driven by a unitary, propositional system (as claimed by Mitchell, De Houwer, & Lovibond, 2009) or by dual systems; one under conscious control, symbolic in nature, and requiring effort to deploy, and the other utilizing associative processes and automatic in its operation (McLaren, Green, & Mackintosh, 1994)? Past research has suggested that for electrodermal conditioning to occur in humans, conscious awareness of the contingencies is necessary to produce conditioned responding (e.g., Hinchy, Lovibond, & Ter-Horst, 1995), as predicted by single process theories that attribute the conditioned response (CR) to conscious expectancy of the shock. In this article, the authors examined the Perruchet effect (Perruchet, 1985), using an electrodermal paradigm to determine whether there is any role for associative processes in human electrodermal conditioning. The authors attempted to replicate the basic effect, whereby expectancy of an unconditioned stimulus (US) increases over a run of nonreinforced trials while the CR to the conditional stimulus (CS) declines, and the complementary pattern in which expectancy decreases over a run of reinforced trials while the CR to the CS grows in strength. In line with these patterns, the change in skin conductance response (our CR) as a function of US run length was found to follow a linear trend opposite to that of conscious expectancy of shock with respect to US run length. This dissociation supports a dual-processing system account of human Pavlovian conditioning, with conscious, controlled processes governing expectancy (and subject to the gambler's fallacy), whereas automatic, associative processes determine at least some of the strength of the CR to the CS.     

Reciprocity of the relationship between role ambiguity and group cohesion in youth interdependent sport

Objectives

Based on the role episode model (Kahn, Wolfe, Quinn, Snoek, & Rosenthal, 1964), the purpose of this study was to examine the reciprocal relationship between role ambiguity (Beauchamp, Bray, Eys, & Carron, 2002) and group cohesion (Eys, Loughead, Bray, & Carron, 2009) in youth interdependent sport teams.

Design

Longitudinal research with self-reported questionnaires.

Methods

Participants (N = 162; 12-18 years of age; M = 15.00 years) took part in two testing sessions (midseason vs. late-season) designed to gather information on individual perceptions of role ambiguity and group cohesion.

Results

After statistically controlling for status, gender, and team membership, results demonstrated that perceptions of social cohesion at midseason positively predicted variations in perceptions of scope of responsibilities and role behaviors in defense between mid- and end of season.

Conclusions

The need to belong (fundamental human motivation) and the unbalanced gender composition of the sample could explain the salience of social cohesion in the cohesion-role ambiguity relationship within youth interdependent sport teams. Results underlined that a part of role construction within youth teams is based on the peer social relationships developed between teammates. Implications are identified for youth practice. Limitations and future directions are addressed.     

Does the Animal Fun program improve motor performance in children aged 4–6 years?

The Animal Fun program was designed to enhance the motor ability of young children by imitating the movements of animals in a fun, inclusive setting. The efficacy of this program was investigated through a randomized controlled trial using a multivariate nested cohort design. Pre-intervention scores were recorded for 511 children aged 4.83 years to 6.17 years (M = 5.42 years, SD = 3.58 months). Six control and six intervention schools were compared 6 months later following the intervention, and then again at 18 months after the initial testing when the children were in their first school year. Changes in motor performance were examined using the Bruininks-Oseretsky Test of Motor Proficiency short form. Data were analyzed using multi-level-mixed effects linear regression. A significant Condition × Time interaction was found, F(2, 1219) = 3.35, p = .035, demonstrating that only the intervention group showed an improvement in motor ability. A significant Sex × Time interaction was also found, F(2, 1219) = 3.84, p = .022, with boys improving over time, but not girls. These findings have important implications for the efficacy of early intervention of motor skills and understanding the differences in motor performance between boys and girls.     

Book review

Crime and creativity

EISENMAN, R. (1991). From Crime to Creativity: Psychological and Social Factors in Deviance. Dubuque, IA: Kendall/Hunt Publishing Co. (128 pp.). ISBN 0–8403–6848–8.

A penchant for the trenchant

SCHULMAN, M. (1991). The Passionate Mind. New York: The Free Press (352 pp.). ISBN 0029281113.

The essential nature of ethical, social, and historical context in examining creativity and innovation

GRUDIN, R. (1990). The Grace of Great Things: Creativity and Innovation. New York: Ticknor & Fields, Houghton Mifflin Co. (257 pp.). ISBN 0–89919–940–2.     

Cyborgs in the Everyday: Masculinity and Biosensing Prostate Cancer

Abstract

An in vivo biosensor is a technology in development that will assess the biological activity of cancers to individualise external beam radiotherapy. Inserting such technology into the human body creates cybernetic organisms; a cyborg that is a human–machine hybrid. There is a gap in knowledge relating to patient willingness to allow automated technology to be embedded and to become cyborg. There is little agreement around what makes a cyborg and less understanding of the variation in the cyborgisation process. Understanding the viewpoint of possible beneficiaries addresses such gaps. There are currently three versions of ‘cyborg’ in the literature (i) a critical feminist STS concept to destabilise power inherent in dualisms, (ii) an extreme version of the human/machine in science-fiction that emphasises the ‘man’ in human and (iii) a prediction of internal physiological adaptation required for future space exploration. Interview study findings with 12 men in remission from prostate cancer show a fourth version can be used to describe current and future sub-groups of the population; ‘everyday cyborgs'. For the everyday cyborg the masculine cyborg status found in the fictionalised human–machine related to issues of control of the cancer. This was preferred to the felt stigmatisation of being a ‘leaker and bleeder’. The willingness to become cyborg was matched with a having to get used to the everyday cyborg's technological adaptations and risks. It is crucial to explore the everyday cyborg's sometimes ambivalent viewpoint. The everyday cyborg thus adds the dimension of participant voice currently missing in existing cyborg literatures and imaginations.     

Associative sequence learning in humans

In a series of experiments using the serial reaction time paradigm, the authors compared the predictions of a powerful associative model of sequence learning (the simple recurrent network; J. L. Elman, 1990) with human performance on the problem devised by A. Maskara and W. Noetzel (1993). Even though the predictions made by the simple recurrent network for variants of this problem are often counterintuitive, they matched human performance closely, suggesting that performance was associatively based rather than rule based. Simple associative chaining models of sequence learning, however, have difficulty in accommodating these results. The authors' conclusion is that, under the conditions of the experiments, human sequence learning is associatively driven, as long as this is understood to mean that a sufficiently powerful means of extracting the statistical regularities in the sequences is in play.     

Therapist training in video chat technology for use in an adaptive digital mental health intervention: Challenges,facilitators and implications for training models

Objective

This qualitative study investigated therapist training experiences, elements of skill acquisition, and barriers and facilitators associated with conducting assessments, and the delivery of low- and high-intensity therapist assistance delivered via video chat technology, adjunctive to a transdiagnostic digital mental health intervention programme for anxiety and depression.

Methodology

In total, 34 semistructured interviews were conducted with 20 therapists. Twenty interviews explored experiences of training to administer a clinical assessment tool, and 14 additional interviews explored training experiences of delivering low- and high-intensity therapist assistance via video chat technology.

Results

Reflexive thematic analysis identified three themes: video chat skill acquisition, competencies transferrable to video chat and video chat service quality. Training and supervision were identified as important to scaffold skill development, and therapists described surprise that their skill set was transferrable to video chat. The most cited barrier to the adoption of video chat was the management of risk and distress, along with environmental suitability. Frequently cited facilitators to the adoption of video chat included stable Internet connection, protocols and resources.

Conclusion

The benefits of video chat technology and digital mental health interventions can be maximised through the expansion and integration of training into existing teaching curricula. If therapists are familiarised and competent to deliver mental health services via the Internet, as well as in person, the future adoption of blended and stepped-care models is likely to be increased.     

Introducing a school social worker into schools

A DES-sponsored school-based social work programme is described, in which six social workers collaborated with teachers in attempts to optimise the school and home environments of 'at risk' and 'maladjusted' junior and senior pupils. The principal components of the scheme included teacher-social work consultation, attempts to increase parent-teacher understanding, and a casework approach with the families.     

Brief communication: The role of category structure in determining the effects of stimulus preexposure on categorization accuracy

What are the effects of preexposure of stimuli on participants' subsequent ability to categorize them accurately? An experiment employing artificial, abstract, visual stimuli confirms that, for adult humans, the effect of preexposure is dependent upon category structure. Whether preexposure has beneficial or detrimental effects is shown to be dependent on the way category examples are generated from the category base patterns. The results are predicted by salience reduction accounts of perceptual learning but may be problematic for stimulus differentiation accounts.